specify with confidence

RH Test Spec

The ASTM F2170 relative humidity (RH) specification supports the latest global standard to measure concrete moisture. RH testing is the most accurate measurement method available to know when concrete is dry enough to install flooring. Refer to the RH specifications for your next flooring project and save hours of needless repairs and construction delays.

Mfgs. Specifying RH Testing

Get the right RH% threshold for the right flooring product with RHSpec.com’s quick access to over 120 flooring manufacturers' RH specifications. Our easily-navigated list of live-link references can help you find each manufacturer’s site and their acceptable RH guidelines, so you can save time and money by knowing the acceptable RH levels in concrete before installation.

Why Upgrade Your Spec?

Every aspect of a building’s design from the ground up reflects on your reputation. Assuring correct concrete moisture levels in the concrete slabs is critical to preventing failures in floor covering systems.

So why put your reputation on the line by specifying outdated concrete moisture methodologies? The new version of the ASTM calcium chloride standard disallows the use of calcium chloride testing for lightweight concrete applications. On the other hand, the ASTM F2170 in situ relative humidity (RH) test method for concrete not only is allowed for lightweight concrete slabs but is a superior concrete test method for ALL concrete slabs providing fast and reliable results that more accurately reflect the true moisture conditions in the slab.